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Related Experiment Videos

[Study on CAM system for dental model]

N Motohashi1, A Nunota, T Kuroda

  • 12nd Department of Orthodontics, Faculty of Dentistry, Tokyo Medical and Dental University.

Kokubyo Gakkai Zasshi. the Journal of the Stomatological Society, Japan
|November 19, 1997
PubMed
Summary
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This study introduces a new computer-aided manufacturing (CAM) system for dental models, demonstrating good shape reproducibility and measurement reliability for clinical applications.

Area of Science:

  • Biomedical Engineering
  • Dental Technology
  • Computer-Aided Manufacturing

Background:

  • Accurate dental models are crucial for prosthodontics and orthodontics.
  • Existing methods for dental model creation can be time-consuming and lack precision.
  • Advancements in digital technology offer potential for improved dental modeling.

Purpose of the Study:

  • To introduce a novel computer-aided manufacturing (CAM) system for dental models.
  • To evaluate the shape reproducibility of CAM-generated dental models.
  • To assess the measurement reliability of different CAM modeling techniques.

Main Methods:

  • Development of a CAM system integrating laser scanning for 3D data acquisition and an engineering workstation for model creation.
  • Creation of four distinct CAM models (WAX, STL, FDM, SL) from a patient's dental scan.

Related Experiment Videos

  • Evaluation of measurement reliability using a contact 3D measurement unit.

    • Main Results:

    • All CAM models, except WAX, exhibited excellent shape reproducibility without blind areas.
    • Measurement reliability varied across models: graph (0.12 ± 0.08 mm), WAX (0.25 ± 0.05 mm), SL (0.28 ± 0.16 mm), FDM (0.31 ± 0.15 mm), and STL (0.39 ± 0.18 mm).
    • The developed CAM system and its output module program showed high fidelity in processing 3D shape data.

    Conclusions:

    • The newly developed CAM system demonstrates clinical feasibility for dental modeling.
    • The system supports accurate electronic storage of medical information.
    • The evaluated CAM models offer reliable options for digital dentistry workflows.